<?php

if(0){
  echo __LINE__,"\n\n";
}

if('0'){
  echo __LINE__,"\n\n";
}

if(-23){
  echo __LINE__,"\n\n";
}

if(23){
  echo __LINE__,"\n\n";
}

if(null){
  echo __LINE__,"\n\n";
}

if('Hello'){
  echo __LINE__,"\n\n";
}

if(" "){
  echo __LINE__,"\n\n";
}

if(""){
  echo __LINE__,"\n\n";
}

if(true){
  echo __LINE__,"\n\n";
}

if(false){
  echo __LINE__,"\n\n";
}
